Bag



, March 1947- 1.. CAMPAGNANO BAG Filed Dec; 9, 1943 3 Sheets-Sheet 1 LEO C'AMPAGNANO Gltorneg March 4, 1947. CAMPAGNANO BAG Filed Dec. 9, 1945 3 Sheets-Sheet 2 lnvanior ,7 L 0 CAMP/5 GNA NO March 4, 1947. C'AMPAGNANQ 2,416,816

BAG

Filed Dec. 9, 1943 3 Sheets-Sheet 3 r w n e D n 3 LEO CAMPAGNANO Gttomeg Patented Mar. 4, 1947 UNITED STATES PATENT OFFICE BAG Leo Campagnano, Rockaway Park, N. Y.

Application December 9, 1943, Serial No. 513,531

10 Claims.

This invention relates to containers of the bag type.

One object of the invention is to provide a bag construction which is well adapted to the production of a bag which is strong, resistant to shocks, and fluid tight and which can be manufactured by simple operations and at low cost.

Another obiect of the invention is to provide a multiple-compartment bag which is easy to fabricate and inexpensive to produce.

Another object of the invention is the provision of a bag construction which is applicab'e in various ways to the manufacture of a variety of bags of various characteristics and structuralfeatures.

A further object of the invention is to produce a bag which is so constructed as to eliminate the comparatively complicated and expensive bottomforming operations heretofore required for producing the conventional bag and at the same time to produce a bag having a strong bottom and side seams.

A yet further object of the invention is generally to improve the construction of bags formed of paper or other sheet material.

The above and other features and advantages of the invention will be fully understood from the following description, reference being had to the accompanying illustrative drawings.

In the drawings:

Figures 1 to 5 are'perspective views of different forms, respectively, of bags embodying the present invention; 2

Figure 1A is a perspective view of a multiplewall bag embodying the present invention;

Figure 6 is a sectional view. on the line 66 of Figure 2, showing a cross sectional view of both compartments of the bag illustrated in Figure 2;

Figure 7 is a sectional view on the line 'I'I of Figure 6;

Figure 8 is a plan view of a bag-forming member or tube illustrating the method of forming the bag shown in Figure 1;

Figure 9 is a sectional view on line 9-9 of Figur 8;

Figure 10 is a side edge view of the bag forming member illustrated in Figure 8;

Figure 11 is a plan view of a bag-forming member utilized in producing the bag illustrated in Figure 4;

Figure 12 is a sectional view on the line I2--l2 of Figure 11;

Figure 13 is an end view of the bag illustrated in Figure 1, showing the bottom connecting portion of the bag unfolded, for the purpose of illus- 2 tration of the bag construction, the end walls of the bag being in folded condition;

Figure 14 is an end view of the bag showing the bottom connecting portion and the end walls of the bag unfolded, as when the bag is filled or partly filed; and

Figure 15 is a viewof the top of the bag in the condition thereof illustrated in Figure 14, the bag being open.

Figure 16 is a perspective view of an externally reinforced bag;

Figure 17 is a side view of the bag shown in Figure 16 but showing said bag filled and closed;

Figure 18 is a perspective view of the bag shown in Figure 4, used as a case liner, part of the case being cut away for the purpose of illustration.

Referring now to the drawings in detail and first to the form of the invention illustrated in Figures 1, 13 and 14, the bag ID which may be made of light and tough paper, or other suitable sheet material, conventionally used in forming containers of the paper-bag type, is produced from the tube IDA, illustrated in Figures 8, 9 and 10. The tube IDA is made on a conventional tubing machine as p rt of a continuous tube, the tube IDA being cut from said continuous tube to provide the bag forming member of the required length. Said tube or bag forming member IDA comprises the side wall I2 and the opposite side wall which is constituted by the folded portions I3 and I4 which are pasted or otherwise secured together in overlapped relation longitudinally of the tube as indicated at I5. Instead of overlapping the portions I3 and I4, they can be arranged in edge to edge or butt relation and secured in said relation by a separate strip overlapping the adjacent marginal edge portions of said portions I3 and I4. When tube IDA is formed of Cellophane, asphalt coated paper or other waterproof sheet material, the folded portions I3 and I4 can be heat-sealed and thereby secured to each other either in overlapping relation or in butt relation. As here shown, the bag forming members are provided with infolded or gusset portions I6 which extend longitudinally of the bag-forming member IDAfor the full length thereof.

For producing the bag ID from the bag forming member IDA, the latter is folded along a transverse line preferably centrally between the opposite ends of said bag forming member to provide a bag having in integral relation a plurality of compartments ID. The bottom 20 of the bag is common to the two compartments I 8, and as here shown is constituted by the inwardly folded or gusset portion 20A of the bag forming member 3 IOA. After the bag forming member I A is folded the inner side walls of the adjacent compartments are preferably secured to each other, adhesively or in any other suitable way. In certain instances the inner side walls of the adjacent compartments need not be secured to each other. For example, when bags of the present invention are used as case liners as hereinafter described with reference to Figure 16, the inner side walls of the adjacent compartments can be left in nonsecured relation. secured to each other, they may be secured either for the full lengths thereof or to a point above the bottom gusset 20, asillustrated in Figure 13. The lateral extent of the securement of the inner side walls of the bag compartments to each other may vary, and as shown more clearly by Figures 1 and 15, said inner side walls of the bag compartments may be secured to each other laterally of said inner side walls only in the region of the adjacent overlapped portions l5. When the bag is opened or filled so that the compartments I I are expanded, as illustrated in Figures 14 and 15, the end walls of the bag constituted by the gussets l6 unfold, as does the bottom connecting portion or gusset 20, as illustrated in Figure 14 and 15, and portions of the inner side walls of the bag compartments fold, under the weight of the contents of the bag, inwardly toward each other and downwardly toward the inner surfaces of the folded portions of the gusset 20. Thus. in the expanded condition of the bag which is thus provided with the bottom gusset 20, the bottom of the bag is flat so that the bag is self-supporting in upright position.

The bag shown in Figure 1A is of the same construction and is made in substantially the same way as the bag illustrated in Figure 1, but as here shown, the bag illustrated in Figure 1A is a multiple-wall bag. More particularly, it is here shown that the bag is formed from a multiply tube so that the bag made from said tube is formed throughout of two layers and 26 of paper or other sheet material. as indicated with reference to the outer side wall I! of the, bag.

The bag 30, illustrated in Figures 2, 6 and 'l. is of the same construction as the bag ill and is made in t e same way as the latter. but in addition. said bag 30 is provided with a reinforcing member here shown as a corru ated paper liner 32 which is positioned internally of the bag adjacent the side walls I2. Said reinforcing member 32 prefera ly extends for the full width of the ba and for the full length thereof in the tube compartments. and said liner is preferably in one piece a d has a lower folded portion 33 conforming to the bottom connectin portion or gusset 20 of the pa er ba Instead of being positioned internally of the bag, as illustrated reinforcing member 32 can be positioned externally of the bag and attached ad esively or in any other suitable way to the outer surfaces of sides i2 and of the gusset or bottom connecting portion 20 of the bag. Thus. as illustrated in Fi ure 18. the bag 30A is provided with a reinforcing member 32A which is adhesively secured to the outer sur faces of side walls I! and to the bottom gusset 20 of a ba of the construction illustrated in Figure 1. The bottom gusset of member 32A which conforms and is secured to the usset 20 is indicated at 33A. Said member 32A is formed of paper or of any other suitable material, which may be the same as or different than the material of which the bag compartments are made and may be of the same color as or of a different When the inner side walls are I 4, color than that of the bag compartments. As here shown, member 32A is of substantiall the same width as the side walls i2. Upper portions of the side walls I are free from direct securement to each other and upper portions of side walls I! are free from direct securement to member 32A so that said upper portions of walls I2 and II can be folded to provide independent closures, 34 and II, for the bag compartments, after the latter are filled, as illustrated in Figure 17. The unattached upper portions 38 and 31 can be secured in overlapped relation at the top of the bag. as illustrated in Figure 17, to hold the closures 84 and 35 in place or to complete the closure of the bag and to reinforce the top as well as the sides and bottom of the bag.

The bag 40 illustrated in Figure 3 is of the same construction as the bag It illustrated in Figure 1 except that the bag 40 is not provided with a gusset or inwardly folded part at its bottom, but as here shown the bottom of the bag 40 is constituted by a single fold of the bag forming member or tube as illustrated at 42. It will be liIILGIStOOd that for forming the bag 40, the bag forming member is the same as the bag forming member IDA, except that the gusset portion 20A of said bag forming member is omitted and instead the bag forming member is folded along a single line to provide the bottom or connecting portion 42 for the two compartments ill of the bag.

The bag 50, illustrated in Figure 4, is of the sauie construction as the bag l0, except that the end and bottom gussets are omitted. The bag 50 is formed from a .bag forming member or tube 50A illustrated in Figures 11 and 12 which is like the bag forming member or tube IOA with the exception that the gussets I8 and 20A are omitted. It will be understood that the inner side walls of the compartments it of the bags 40 and 50 are secured to each other and that this securement may be the same as described above with reference to the bag ill, but if desired, said inner side walls of the compartments i8 of the bags 40 and 50 may be secured to each other adjacent the bottom fold or connecting portion 42. It will be understood that the multiple-compartment bag 50 is formed from the bag forming member tube 50A by folding the latter along the transverse fold-line A which corresponds to the fold or bottom connecting portion 42 of the bag 50, and that after said bag forming member 50A is thus folded, the inner side walls of the compartments l8 are adhesively or otherwise secured to each other as previously described.

In the form of the invention illustrated in Figure 5, the bag 60 is like the bag 50 except that as here shown the bottom connecting portion 62 is constituted by a gusset like the gusset 20 provided in bag I 0. It will be understood that bag 60 is formed from a bag forming member or tube like the bag forming member 50A except that the latter is provided with a gusset forming portion like the gusset forming portion 20A of bag forming member IIIA illustrated in Figure 8. In bag 60, the inner surfaces of gusset 62 and the adjacent surface portions of the inner side walls of the compartments l8 are preferably not connected to each other except at the fold lines 64 so that gusset 82 can be unfolded substantially in the same way as illustrated in Figures 13 and 14 with reference to bag Ill.

The bags of the present invention may be closed in any suitable way. For example, after one or both compartments are filled or partly filled, the upper portion of the bag may be folded or may be gathered together in the same way as in closing the conventional single receptacle bag, or said upper portion of the bag may be heat-sealed. Further, upper portions of the adjacent inner side walls of the bag may be-leit in non-secured relation so that the upper portions of the companion inner and outer walls of each compartment can be folded together along a transverse line for closing the top of the compartment, thus enabling the compartments to be closed or sealed individually and thereafter opened individually to obtain access to the contents of either compartment without opening or unsealing the other compartment. If desired, the compartments can be sealed from communication with each other at the bottom of the bag, especially when the compartments are filled with different substances or when one compartment is to be opened without opening the other compartment. This seal can be provided by securing the inner surfaces of the bag-forming tube to each other, by adhesive, stitching, or in any other suitable way, along a line transversely of the tube at or near one or more of the lines of fold 22 and 24 in the case of tube IIIA or at or near the line of fold 42A in the case of tube 50A.

In Figure 18, a bag such as the bag 50 illustrated in Figure 4, is shown disposed within a box or case as a case liner therefor. As here shown, case 10 is closed at the bottom and at the four sides thereof and is provided at its top with a removable cover 12. When a bag of the construction illustrated in Figure 4 is filled, the bag contracts in width above the bottom thereof, since there are no gussets to allow the bag to expand without contraction in width, as in the case of the bag shown in Figure 1 and other figures of the drawings. The contraction in the width of the bag, and the downward folding of the lower portions of the inner side walls H when the bag is filled, or partially filled, results in the formation of a flat bottom as in the other bags hereinbefore described but in the absence of gussets in the end walls of the bag the flat bottom has lateral portions 14 which extend laterally beyond the adjacent end walls 15 at the opposite ends of the two compartments of the bag. In Figure 18, the lower part of one side wall of case 10 is cut away to illustrate one of the lateral projections 14 and it will be understood that a similar lateral projection is disposed at the other end walls. By reference to this figure of the drawing, it will be understood that when the bag is inserted in the case 10, the lateral projections 14 are folded upwardly to lie between the side of the case and the adjacent end walls 15 of the bag compartments, from the position illustrated in dotted lines to the position illustrated in full lines. The upper portions of the side walls of the bag compartments are foldable to provide said compartments with the closures 16, said closures 16 being similar to the closures 34 and 35 illustrated in Figure 17, but since the compartments are not provided with gussets, the folding of the upper portions of the side walls to provide the closures 16 results in the formation of folded tapered parts 'I'I at the upper portions of end walls 15. These tapered upper portions 11 of end walls 15 of the two compartments of the bag can be folded downwardly over the top closures 1B of the bag to lie between the latter and the cover 12. In Figure 18 a part of the top of the cover 12 is cut away to show portions of the closures l6 and parts of the upper tapered portions of the end walls II of the bag compart-,

ments. It will be understood that it is within the scope of the present invention to construct the bag without the securement of the adjacent surfaces of the inner side walls 14 of the bag compartments to each other. Thus, for example, when the bag BI is used as a case liner as illustrated in Figure 18, the inner side walls ll of the bag compartments can be left completely free from direct attachment to each other, if desired, and yet said compartments are held in adjacent relation by the case 10 in which the bag fits.

Thus it is seen that bags constructed as described above are well adapted to accomplish the several objects of the invention. It will be understood that the bags produced in accordance with the present invention may be used for a variety of purposes, such'as for example, in the same way as the conventional paper bag, shopping bag, etc. Further, as these bags have a plurality of compartments, they may be used for packaging various materials which may be kept 1A which may be required to be sift-proof, vaporproof, or water-proof and it may be noted further that the bag construction of the present invention is well adapted to the provision of reinforced bags such as, for example, the reinforced bags illustrated in Figures 2, 6, '7, 16 and 1'1 as described above.

It will be clearly understood that a reinforcing strip such as for example a strip 32 or a strip 32A can be applied to any of the bags hereinbefore described whether or not said bags have side gussets or bottom gussets or both side and bottom gussets. Thus, for example, a strip like the strip 32A can be applied to any of the bags i1- lustrated in Figures 3, 4 and 5 inclusive, externally thereof in the same way as illustrated in Figure 16, except that when such strip is applied to bags 40 and 50 (Figs. 3 and 4) which do not have bottom gussets, strip 32A will have a single fold at its bottom coinciding with the told 42 instead of a plurality of folds as in Figure 16. Also, it will be understood that the tubes from which the various bags are mademay be formed from two sheets of material instead of from one sheet, for example, by superposing two sheets in surface to surface relation and uniting said sheets to each other at their marginal edge portions adhesively or by heat sealing said marginal edge portions especially when the tubes are formed of material for producing heat sealed bags.

Various other uses and adaptations of the bag construction of the present invention will oc-, our to skilled artisans, particularly in view of the present disclosure, and it will be understood that various changes may be made in the bag construction herein shown or referred to without departing from the underlying idea of the present invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Pat-- 7 material of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of'the bag, each of said compartments having opposite end walls disposed between said inner and outer walls of the companion compartment and comprising longitudinal portions folded inwardly from the longitudinal edges of said inner and outer side walls whereby each of said compartment is expansible and contractable in a direction extending between said inner and outer side walls thereof.

2. A bag comprising two compartments disposed in side by side relation, each of said compartments comprising inner and outer side walls integral with each at the bottom of the bag, said inner side walls being secured to each other between the top and bottom of the bag, the material of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of the bag, each of said compartments having opposite end walls disposed between said inner and outer walls of the companion compartment and comprising longitudinal portions folded inwardly from the longitudinal edges of said inner and outer side walls whereby each of said compartment is expansible and contractable in a direction extending between said inner and outer side walls thereof.

3. A bag comprising a tube of sheet material folded transversely intermediate the ends thereof, said bag having two compartments disposed in adjacent side by side relation, each of said oompartments having opposite end walls disposed between said inner and outer walls of the companion compartment and comprising longitudinal portions folded inwardly from the longitudinal edges of said inner and outer side walls whereby each of said compartment is expansible and contractable in a direction extending between said inner and outer side walls thereof, lower portions of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in-a direction extending between said side walls of the bag.

4. A bag comprising a tube of sheet material folded transversely intermediate the ends thereof, said bag having two compartments disposed in adjacent side by side relation, each of said compartments having opposite end walls disposed between said inner and outer walls of the companion compartment and comprising longitudinal portions folded inwardly from the longitudinal edges of said inner and outer side walls whereby each of said compartments is expansible and contractable in a direction extending between said 8 inner and outer side walls thereof, lower portions of said inner and outer side walls bein folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of the bag, said inner side walls of the two compartments being secured to each other above the bottom of the bag only at points spaced from the side edges of said walls.

5. A bag comprising two compartments disposed in side by side relation, each of said compartments comprising inner and outer side walls integral with each at the bottom of the bag, the material of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of the bag, said inner and outer walls being secured at their inner surfaces at said expansible and contractable bottom of the bag to prevent communication between the two compartments at said common bottom of the bag, and a layer of reinforcing material disposed in surface to surface relation with said outer side walls and with said bottom and folded at said laterally spaced lines of fold so as to be expansible and contractable at the bottom of the bag in a direction extending between said side walls of the bag.

6. A bag comprising two compartments disposed in side by side relation, each of said compartments comp-rising inner and outer side walls integral with each at the bottom of the bag, the material of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of the bag and a layer of reinforcing material disposed in surface to surface relation with said outer side walls, said reinforcing material being disposed within the bag and having a foldable bottom portion conforming to and foldable with said bottom of the bag.

7. A bag comprising a tube of sheet material folded transversely intermediate the ends thereof, said bag having two compartments disposed in adjacent side by side relation, the inner side walls of said compartments being formed by one of the side walls of said tube and the other side walls of said compartments being formed by the opposite side wall of said tube, the folded portion of saidtube and the adjacent lower portions of said inner and outer side walls of the bag compartments being relatively foldable to provide the bag with a flat bottom extending between the opposite outer side walls of said compartments, said bottom having lateral portions extending outwardly beyond the adjacent end walls of the bag compartments and foldable upwardly to positions adjacent said adjacent end walls, respectively.

8. A bag comprising two compartments disposed in side by side relation, each of said compartments comprising inner and outer side walls integral with each at the bottom of the bag, the material of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a. plurality of laterally spaced lines of fold and providin the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extendin between said side walls of the bag, and a layer of reinforcing material disposed in surface to surface relation with said outer side walls, said layer of reinforcing material being disposed on the outer side of the bag and having upper portions free from direct attachment to the bag and foldable over the top of the bag and adapted to be secured over the top of the bag after the contents of the bag are placed in said compartments.

9. A bag comprising a tube of sheet material folded transversely intermediate the ends thereof, said bag having two compartments disposed in adjacent side by side relation, each of said compartments having opposite end walls disposed between said inner and outer walls of the companion compartment and comprising longitudinal portions folded inwardly from the longitudinal edges of said inner and outer side walls whereby each of said compartments is expansible and contractable in a direction extending between said inner and outer side walls thereof, lower portions of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providingthe bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of the bag, and a layer of reinforcing material being disposed in surface to surface relation with said outer side walls and said bottom of the bag, said layer of reinforcing material being disposed on the outer side of the bag and having upper portions free from direct attachment to the bag and foldable over the top of the bag and adapted to be secured over the top of the bag after the contents of the bag are placed in said compartments.

10. A bag comprising two compartments disposed in side by side relation, each of said compartments comprising inner and outer side walls integral with each at the bottom of the bag, the material of said inner and outer side walls being folded at the bottom of the bag transversely thereof along a plurality of laterally spaced lines of fold and providing the bag with a bottom common to both of said compartments and having inwardly extending portions foldably connected along said laterally spaced lines, whereby said bottom is expansible and contractable in a direction extending between said side walls of the bag, and a layer of reinforcing material disposed in surface to surface relation with said outer side walls and with said bottom at the outer surfaces of said outer side walls and of said bottom and folded at said laterally spaced lines of fold so as to be expansible and contractable at the bottom of the bag in a direction extending between said side walls of the bag.

LEO CAMPAGNANO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Niunber Name Date 2,030,634 Holloway Feb. 11, 1936 466,723 Lareny Jan. 5, 1892 681,659 Sallade Aug. 27, 1901 1,912,963 Blum June 6, 1933 1,665,576 Witham Apr. 10, 1928 877,060 Douglass Jan. 21, 1908 1,744,285 Taylor Jan. 21, 1930 2,307,902 Vogt et a1 Jan. 12, 1943 

